Republic Services, Inc., together with its subsidiaries, provides non-hazardous solid waste collection, transfer, recycling, disposal, and energy services for small-container, large-container, municipal and residential, and energy services customers in the United States and Puerto Rico. The company's collection services include curbside collection of waste for transport to transfer stations, landfills, or recycling processing centers; supply of waste containers; and renting of compactors. It is also involved in the processing and sale of old corrugated containers, old newsprint, aluminum, glass, and other materials; temporary waste and recycling collection services; and provision of landfill services. As of December 31, 2018, the company operated through 349 collection operations, 207 transfer stations, 190 active landfills, 91 recycling processing centers, and 11 salt water disposal wells, as well as 7 treatment, recovery, and disposal facilities in 41 states and Puerto Rico. It also operated 75 landfill gas-to-energy and renewable energy projects and had 129 closed landfills. The company was founded in 1996 and is headquartered in Phoenix, Arizona.